Omega 3303/3313 Movement Sliding Pinion 722330331121

Product Description

The Omega 3303/3313 Movement Sliding Pinion (722330331121) is a genuine original component used in the keyless works of Omega Caliber 3303 and 3313 automatic chronograph movements . This sliding pinion engages with the setting lever and crown wheel to enable smooth switching between winding and time-setting modes. It is commonly replaced during professional servicing when wear or irregular hand-setting behavior is detected.

Features & Function

• Genuine Omega part – authentic original component for Caliber 3303 and 3313

• Keyless works component – engages with setting lever for mode switching

• Direct replacement – designed for professional servicing and restoration

• Precision-engineered – manufactured to Omega’s factory specifications

Specifications

• Part Number: 722330331121 (also listed as 3303-31.121)

• Compatible Movements: Omega Caliber 3303 A/B, 3313 A/B 

• Part Type: Sliding pinion (keyless works component)

• Movement Diameter: 27.0 mm (12”’) 

• Movement Height: 6.85 mm 

• Jewels: 37 

• Frequency: 28,800 vph (4 Hz) 

• Power Reserve: 52 hours 

• Chronograph System: Column-wheel 

• Origin: Switzerland (Omega factory part)

• Condition: Brand new

Applications

• Service and overhaul of Omega Caliber 3303 and 3313 movements

• Keyless works repair – replacing worn or damaged sliding pinions

• Restoration of Speedmaster, Seamaster Chronograph, and other 3303/3313-powered models

• Suitable for professional watchmakers and authorized service centers

FAQs

1. Is this a genuine Omega part?

Yes, this is a genuine Omega factory part (reference 722330331121), manufactured in Switzerland. It is not an aftermarket or generic component .

2. Which movements is this sliding pinion compatible with?

This sliding pinion is compatible with Omega Caliber 3303 A/B and 3313 A/B movements. The 3303 features a lever escapement, while the 3313 incorporates Omega’s co-axial escapement .

3. What is the function of the sliding pinion?

The sliding pinion is part of the keyless works that moves along the winding stem to engage either the crown wheel for manual winding or the setting mechanism for time/date adjustment . It enables the crown to switch between modes smoothly.

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